Dolomie

Chemical Formula	CaMg(CO₃)₂
Crystal System	Trigonal
Color	White, gray, pink, green, brown, black
Streak	White
Luster	Vitreous to pearly
Hardness (Mohs scale)	3.5 - 4
Specific Gravity	2.85
Cleavage	Perfect rhombohedral
Fracture	Conchoidal to uneven
Transparency	Transparent to translucent
Tenacity	Brittle
Refractive Index	1.502 - 1.679
Solubility	Slowly soluble in dilute hydrochloric acid (HCl)
Formation	Typically forms in sedimentary environments through the replacement of limestone
Uses	Used in construction (as aggregate), manufacturing of cement, and as a source of magnesium